Did I just break my CPU?

That shouldn't have damaged anything. Could be a part was going out but try unpluggin the system from the wall. Ppulling the battery for 10 minutes while checking all your cables connections. The give a test.

Ryzen uses a stringent memory training process. Normal operation after a change of CPU or memory settings can require allowing the system to start and reset itself several times. I've seen it go as many as seven restarts before the system will POST. You should allow it to perform this process if it happens. If it does not POST within seven or eight restarts then there is a configuration problem it cannot overcome and you will need to abort, enter the bios and correct the issue or setting.

Again, automatically resetting a few times does not necessarily indicate a problem unless it does not eventually correct itself. After it DOES correct itself, if it does, you might still want to re-enter the bios after restarting windows, if it POSTS, and make sure that your settings are still as you intended them to be. Sometimes the bios will default it's settings if it is unable to successfully post after a number of tries.

Try removing your video card, and let the onboard graphics take the job.
I am guessing that the bios default is going back to onboard video.

BIOS defaults only to whatever is connected to a monitor. If there is a PCI card installed, and a monitor attached to that, it will "default" to anything other than what it can see. The BIOS will not default to integrated graphics if there is a graphics card installed.

Besides which, the OP said nothing about there not being a display. He said it would not POST. Totally different things.

Unplug the power from the wall. Remove the CMOS battery for two minutes, and press the power button on the case for ten seconds during those two minutes. Put the CMOS battery back in, reconnect power and power up. Enter the bios, choose the option for "optimal default" or "setup default" settings. Save settings, exit bios and see if the system will POST and boot to windows.

Would it be that difficult to just try it?

It's not a question of it being difficult. It's a matter of it being pointless.

Obviously you do not understand the difference between "won't POST", and "no display". He already has a display, it is not a graphics issue. It is a hardware, not graphics related, issue. At least, from what I can ascertain based on the information in his post, which I actually read.

What BIOS version did you install?

So you currently have version 7A34vAA installed? That's what it looks like to me, and that would be the latest version.

XMP typically is not working for Ryzen builds. Unless it is a Ryzen specific memory module, like the FlareX modules, those XMP profiles are generally tailored for Intel builds. Likely, you will need to manually configure your memory settings.

There are instructions in the following overclocking tutorial for Ryzen that explain how to do that. You will probably also need to find and copy down the specific settings for your memory modules as outlined on the manufacturer product page so you can input those settings based on the instructions offered in this tutorial.

http://www.overclockers.com/amd-ryzen-overclocking-guide/

There are also recommendations on how to set CPU voltage AND the all important core voltage or offset voltage. Limiting the offset will likely stop it from ranging so high, but it might also cause it to be unstable if it NEEDS that much voltage to be stable at higher clock speeds during turbo or if you have manually clocked the chip to that height. When overclocking I usually recommend turning off any turbo core features. If you set the base clock to 3.9Ghz, you don't want the system trying to change that based on turbo settings.

That is based on Intel and AMD FX architectures however. I'm not 200% sure it works the same on Ryzen, but I suspect it is still a good idea. There is no need for a turbo feature if you are already beyond that with your clock speed based on a manual configuration. If it is not overclocked, then I would not change it.


This thread might be helpful too, indications are that 1.4v might not be out of spec for an overclocked Ryzen chip. Seems high to me too, but I've not done any overclocking on Ryzen yet, although I've done plenty of overclocking on past Intel and AMD generations and I'd balk at 1.4v for most systems. Maybe not on this gen of AMD.

https://community.amd.com/thread/217295


Also, this.

From Tom's Review:

"AMD predicts that most customers should see somewhere between 3.9 and 4.1 GHz across all cores, and suggests you stick with a 1.35V ceiling if you want your chip to last. Although core voltages in excess of 1.45V are considered sustainable, they'll have a more pronounced effect on longevity."

Tom's hardware indicates that that drop-off point is 1.45 volt

From Kitguru:

"Default voltage for manual tuning should start at around 1.3625V, according to AMD. Users should be fine pushing to 1.40V with a decent CPU cooler and up to 1.45V with a high-end dual-tower heatsink or dual-fan AIO radiator. At 1.45V, however, AMD suggests that processor longevity could be affected according to their models."

I take that to mean 1.35-1.45V is probably safe depending on your cooling solution.

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